Makhtesh Ramon Totally Explained

Everything about Makhtesh Ramon totally explained

Makhtesh Ramon (; lit:Ramon Crater) is a spectacular geological feature of Israel's Negev desert. Located at the peak of Mount Negev, some 85 km south of the city of Beersheba, the landform isn't actually an impact crater from a meteor, but rather is the world's largest erosion cirque or makhtesh. The crater is 40 km long and 2-10 km wide, and is shaped like an elongated heart. The only settlement in the area is the small town of Mitzpe Ramon (מצפה רמון, "Ramon Observation Point") located on the northern edge of the crater. Today the crater and surrounding area forms Israel's largest national park, the Ramon Nature Reserve.

Etymology

The name Ramon comes from the Arabic word Ruman ("Romans"), and is probably linked to an ancient trading route once used by the Roman Empire which passed through the crater. There are two other major makhteshim found in the Negev, Makhtesh Gadol (big) and Makhtesh Qatan (small) both of which were chartered before the largest, Ramon Crater.

Formation

Hundreds of millions of years ago, the Negev desert was covered by an ocean. Slowly, this started to recede northwards leaving behind a hump-shaped hill. The hump was slowly flattened by water and climatic forces. Approximately five million years ago), the Arava Rift Valley was formed, with rivers changing their courses, carving out the inside of the crater which was a softer rock than that overlying. The crater bottom continued to deepen at a much faster rate than the surrounding walls, which gradually increased in height. As the crater deepened, more layers of ancient rock were exposed with rocks at the bottom of the crater being up to 200 million years old. Today, the crater is 500m deep with the deepest point being Ein Saharonim (Saharonim Spring) which also contains the makhtesh's only natural water source which sustain much of the wildlife in the makhtesh including onagers and ibex.

Geology

Makhtesh Ramon contains a diversity of rocks including clay hills known for their fantastic red and yellow colors and forms. Impressive mountains rise at the borders of the crater - Har Ramon (Mt. Ramon) at the southern end, Har Ardon (Mt. Ardon) at the north-eastern end, and two table mountains - Har Marpek (Mt. Marpek - "Elbow"), and Har Katum (Mt. Katum - "Chopped") along the southern wall. The hills to the north-eastern edge of the makhtesh were once entirely covered by spiral ammonite fossils, ranging from the size of snails to of tractor wheels although these have mainly been extracted so only smaller fossils can be found here today.
   Giv'at Ga'ash, a black hill in the north of the makhtesh was once an active volcano which erupted thousands of years ago and caused it to be covered in lava which quickly cooled in the open air, converting it into basalt. Limestone covered by basalt can also be found in smaller black hills in the southern part of the makhtesh, including Karnei Ramon.
   Shen Ramon (Ramon's Tooth) is a rock made of magma which hardened whilst underground. It later rose up through cracks in the earth's surface, and today stands in striking contrast with the nearby creamy coloured southern wall of the crater, as a black sharp-edged rock.
   In the centre of the makhtesh is Ha-Minsara (The Carpentry Shop), a low hill made up of black prismatic rocks, and interestingly, the rectangular pipes on the side of the hill are made of the same sort of sand found on beaches. As such, this is the only place in the world where prisms made of heated sand turned into liquid which, in cooling naturally formed rectangular and hexagonal prisms, can be seen. These prisms lost no space in the middle during formation.

History

The ruins of a large prehistoric stone structure known as Khan Saharonim are found in the makhtesh as it lies along the ancient Spice Trail, a trade route used by the Nabateans 2,000 years ago. These ruins acted as a way station for the traders and their animals (khan is the Arabic word for a caravansary) as they proceeding further westwards to the Mediterranean seaport city of Gaza.

Gallery

Image:Ramoncrater4.jpg Image:Ramoncrater5.jpg Image:Ramoncrater6.jpg Image:Ramon_Crater_2.jpg Image:YaelRamon ST 07.JPG|Nubian ibex in Ramon crater Image:RamonFault.jpg|Ramon Fault on the southern side of Makhtesh Ramon, Israel; June 2007. Image:RamonFault1.JPG|Ramon Fault on the southern side of Makhtesh Ramon, Israel; June 2003. Image:Ramon2004a.jpg|North side of Makhtesh Ramon; June 2004. Further Information

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